Polaroid T-64 Characteristic H&D curves for Normal development, Processing time and temperature

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Film Data Sheet

Technical Data

T-64 Tungsten

Instant Color Peel-Apart Films

The information in this film data sheet represents the typical performance of Polaroid’s T-64 Tungsten color films. Specific film lots may vary.

Recommended

64 / 19o

speed (ISO)

 

 

 

Recommended

90 sec. @

processing time

and

70oF/21oC

temperature

 

 

 

Resolution

10 line

(1000:1)

pairs/mm

 

 

Contrast

Medium - High

 

 

Processing time and temperature

For best results process at temperatures above 60oF(16oC).

oF

oC

Time in

Exposure

seconds

Adjustment

 

 

 

 

 

 

95

35

90

-1/3 stop

 

 

 

 

65-90

21-32

90

None

 

 

 

 

55

13

120

1/2 stop

 

 

 

 

D-Max:The density value for the film’s darkest black.

 

Characteristic H&D curves for

 

 

normal development

 

3

 

 

 

 

H&D Curves @ 70oF/21oC

 

Blue

 

 

 

Green

 

 

 

Red

2

 

 

 

Sample Density

 

 

 

1

 

 

 

0

 

 

 

-3

-2

-1

0

 

Relative Log Exposure

 

 

D-Min:The lowest density value that a film exhibits. In prints, the whiteness of the brightest highlight, relative to the unprocessed print.

Slope: The positive ratio of the log E increments of the straight line region of the curve, as determined by the 1/4-3/4 increment method. The slope of an H&D curve indicates the overall contrast of a film: low contrast slopes less than 1.10; medium contrast slopes from

1.10to 1.70; high contrast slopes greater than 1.70.

Characteristic curves for cold development

 

3

 

 

 

 

 

H&D Curves

 

Blue

 

 

@ 55 oF/18 oC

 

 

 

 

Green

 

 

 

 

Sample Density

 

 

 

Red

2

 

 

 

1

 

 

 

 

 

 

 

 

0

 

 

 

 

-3

-2

-1

0

Relative Log Exposure

Characteristic curves for

hot development

 

3

 

 

 

 

 

H&D Curves

 

Blue

 

 

@ 95 oF/35 oC

 

 

 

 

Green

 

 

 

 

Sample Density

 

 

 

Red

2

 

 

 

1

 

 

 

 

 

 

 

 

0

 

 

 

 

-3

-2

-1

0

Relative Log Exposure

Image 2
Contents Image Area Film SpeedFormat FinishCharacteristic H&D curves for Normal development Processing time and temperatureReciprocity law failure Reciprocity Law FailureSpectral Sensitivity

T-64 specifications

The Polaroid T-64 is a remarkable instant film used primarily in the Polaroid photographic system, introduced in the mid-1960s. Known for its vibrant color reproduction and instant processing capabilities, the T-64 film quickly became a favorite among photographers, artists, and enthusiasts alike.

One of the defining features of the Polaroid T-64 is its ability to deliver high-quality images with rich color saturation. The film's color emulsions were designed to capture a wide gamut of hues, making it ideal for a variety of photography genres, from portraiture to landscape. The prints produced by T-64 film are characterized by their sharpness and clarity, owing to the advanced film processing technology used in its manufacturing.

A significant technological advancement of the Polaroid T-64 is its use of a patented integral film technology. This means that the film cartridge itself contains all the necessary chemicals for developing the image, eliminating the need for additional darkroom processes. After exposure, the film develops automatically, producing a finished print ready for viewing in just a few minutes. This unique feature revolutionized photography by allowing instant gratification for both amateur and professional photographers.

Another notable characteristic of the T-64 film is its durability. The prints are coated with a protective layer that not only preserves the image but also resists fading and environmental damage over time. This makes the T-64 particularly suitable for archivally important photographs, as well as for everyday use in various settings.

In terms of shooting dynamics, the Polaroid T-64 film has a relatively high ISO rating, typically around 100, allowing photographers to capture images in moderate lighting conditions without significant grain. This versatility made it a popular choice for both indoor and outdoor photography.

The T-64 film was compatible with several Polaroid camera models, further enhancing its accessibility. The ease of use and straightforward mechanics of Polaroid cameras meant that even novices could achieve compelling photographic results with T-64 film.

Despite its popularity, Polaroid discontinued the T-64 film in the early 2000s, a decision that sparked nostalgia and demand for instant film among fans of traditional photography. Nevertheless, the legacy of the Polaroid T-64 lives on, celebrated for its significant contribution to the evolution of instant photography and its iconic status within visual culture. Today, the Polaroid brand continues to innovate, drawing inspiration from its rich history while embracing new technologies and artistic approaches.